Harq-Ack Feedback for Configured Grant Pusch

2. The UE of claim 1, wherein the at least one processor is configured to cause the UE to receive a radio resource control (RRC) signaling from the base station indicating a maximum number of uplink HARQ processes which can be acknowledged with CBG-level HARQ-ACK feedback in the first DCI.

3. The UE of claim 2, wherein the HARQ-ACK codebook comprises two parts: a first part which includes TB-level HARQ-ACK information bits for N uplink HARQ processes; and a second part which includes the CBG-level HARQ-ACK information bits for X uplink HARQ processes, wherein N is a total number of uplink HARQ processes, and X is the maximum number of uplink HARQ processes with CBG-level HARQ-ACK feedback.

4. The UE claim 2, wherein the HARQ-ACK codebook comprises two parts: a first part which includes TB-level HARQ-ACK information bits for N-X uplink HARQ processes; and a second part which includes the CBG-level HARQ-ACK information bits for X uplink HARQ processes, wherein N is a total number of uplink HARQ processes, and X is the maximum number of uplink HARQ processes with CBG-level HARQ-ACK feedback.

5. The UE of claim 2, wherein the HARQ-ACK codebook comprises TB-level HARQ-ACK information bits for N-X uplink HARQ processes and the CBG-level HARQ-ACK information bits for X uplink HARQ processes, wherein N is a total number of uplink HARQ processes, X is the maximum number of uplink HARQ processes with CBG-level HARQ-ACK feedback, and the TB-level HARQ-ACK information bits and the CBG-level HARQ-ACK information bits are concatenated in an order of uplink HARQ process IDs.

6. The UE of claim 2, wherein the HARQ-ACK codebook comprises CBG-level HARQ-ACK information bits for X uplink HARQ processes, and X is the maximum number of uplink HARQ processes with CBG-level HARQ-ACK feedback.

7. The UE of claim 2, wherein the uplink HARQ processes with CBG-level HARQ-ACK feedback are used for configured grant uplink transmissions.

8. The UE of claim 2, wherein the at least one processor is configured to cause the UE to select up to X uplink HARQ processes with CBG-level HARQ-ACK feedback from all uplink HARQ processes and set the indicator in the UCI corresponding to each of up to X uplink HARQ processes, and X is the maximum number of uplink HARQ processes which can be acknowledged with CBG-level HARQ-ACK feedback in the first DCI.

9. The UE of claim 8, wherein the UE is configured with a plurality of criteria used for selecting up to X uplink HARQ processes with CBG-level HARQ-ACK feedback.

10. The UE of claim 1, wherein the maximum number of uplink HARQ processes with CBG-level HARQ-ACK feedback is determined as the largest x satisfying a condition, N+x*M+Z<=Y, and, M is maximum number of CBGs per transport block (TB) configured by RRC signaling, N is a total number of uplink HARQ processes, Z is a number of other necessary information bits in the first DCI except for the HARQ-ACK codebook, and Y is the size of the uplink grant.

11. The UE of claim 1, wherein the maximum number of uplink HARQ processes with CBG-level HARQ-ACK feedback is determined as the largest x satisfying a condition, x*M+(N−x)+Z<=Y, and, M is maximum number of CBGs per TB configured by RRC signaling, N is a total number of uplink HARQ processes, Z is a number of other necessary information bits in the first DCI except for the HARQ-ACK codebook, and Y is the size of the uplink grant.

12. The UE of claim 1, wherein the maximum number of uplink HARQ processes with CBG-level HARQ-ACK feedback is determined as the largest x satisfying a condition, x*M+Z<=Y, and, x<=N, N is a total number of uplink HARQ processes, M is maximum number of CBGs per TB configured by RRC signaling, Z is a number of other necessary information bits in the first DCI except for the HARQ-ACK codebook, and Y is the size of the uplink grant.

13. The UE of claim 1, wherein the UCI includes a field indicating HARQ process number for the configured grant uplink data channel and the indicator in the UCI requests CBG-level HARQ-ACK feedback for the HARQ process number.

14. The UE of claim 1, wherein the at least one processor is configured to cause the UE to receive, from the base station, second downlink control information (DCI) which includes TB-level HARQ-ACK feedback for all uplink HARQ processes, and the second DCI has the same size as the uplink grant.

15. The UE of claim 14, wherein a field for differentiating the first DCI and the second DCI is included in the first DCI and the second DCI.

16. The UE of claim 14, wherein the first DCI includes only CBG-level HARQ-ACK feedback for uplink data transmissions.

17. The UE of claim 1, wherein the UCI further includes code block group transmission information (CBGTI) indicating CBGs transmitted on the configured grant uplink data channel.